![Yuav ua li cas tshwm sim nyob rau hauv lub cell tom qab fertilization? Yuav ua li cas tshwm sim nyob rau hauv lub cell tom qab fertilization?](https://i.answers-medical.com/preview/medical-health/13941340-what-happens-in-the-cell-after-fertilization-j.webp)
Video: Yuav ua li cas tshwm sim nyob rau hauv lub cell tom qab fertilization?
![Video: Yuav ua li cas tshwm sim nyob rau hauv lub cell tom qab fertilization? Video: Yuav ua li cas tshwm sim nyob rau hauv lub cell tom qab fertilization?](https://i.ytimg.com/vi/gBAhBdrUu6g/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Yuav Ua Li Cas Tom Qab Fertilization ? Zygote faib los ntawm cov txheej txheem hu ua mitosis, uas txhua tus ntawm tes muab ob npaug los faib ua ob hlwb . Tus zygote mam li taug qab txoj hlab ntaws hauv plab mus rau lub tsev menyuam uas nws yuav tsum tau cog rau hauv ob sab phlu kom thiaj li tau txais cov khoom noj uas nws xav tau kom loj hlob thiab muaj sia nyob.
Kuj paub, yuav muaj dab tsi tshwm sim tom qab fertilization?
Ib zaug fertilized , lub qe mus rau hauv cov hlab ntsha mus rau lub tsev menyuam, los yog lub tsev me nyuam, qhov chaw uas nws yuav cog rau hauv phab ntsa uterine. Cov kws kho mob xa mus rau chiv qe raws li lub cev xeeb tub tom qab kev cog hniav. Pib txij li cuaj lub lim tiam ntawm cev xeeb tub, thiab txog thaum cev xeeb tub tas, cov kws kho mob hu tus me nyuam hauv plab.
Tom qab, lo lus nug yog, dab tsi tshwm sim rau DNA thaum fertilization? Tom qab ua tiav ntawm oocyte meiosis, tus chiv qe (tam sim no hu ua zygote) muaj ob lub haploid nuclei (hu ua pronuclei), ib qho tau los ntawm txhua tus niam txiv. Hauv cov tsiaj txhu, ob lub pronuclei tom qab nkag mus rau theem S thiab rov ua dua lawv DNA raws li lawv tsiv mus rau ib leeg.
Hauv qhov no, puas muaj mitosis tshwm sim tom qab fertilization?
Cov phev hlwb txav mus los ntawm lub tsev menyuam mus rau hauv lub raj xa menyuam, qhov twg ib tus phev cell tuaj yeem ua tau fertilize lub qe qe. Lub zygote undergoes mitosis cov tsos mob los tsim ob lub hlwb zoo tib yam uas tseem txuas nrog. Qhov no yuav siv sijhawm txog 36 teev tom qab fertilization . Mitosis ces tshwm sim nquag dua.
4 cov kauj ruam ntawm fertilization yog dab tsi?
Cov theem ntawm fertilization tuaj yeem muab faib ua plaub txheej txheem: 1) kev npaj phev, 2) phev-qe paub thiab khi, 3) phev-qe fusion thiab 4 ) fusion ntawm phev thiab qe pronuclei thiab ua kom zygote.
Pom zoo:
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Feem ntau, thaum lub qia cell faib, ib tus ntxhais cell sib txawv thiab tawm hauv lub niche, thaum lwm tus tseem nyob tom qab kom rov ua dua lub niche. Thaum lub qia cell poob, tus ntxhais ntawm cov qia nyob ze uas yuav muaj qhov sib txawv, hloov pauv mus rau hauv qhov chaw uas tsis muaj chaw thiab dhau los ua qia cell tshiab
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Thaum nqus tau, daim diaphragm sib cog lus thiab ua kom tiaj thiab lub hauv siab kab noj hniav nthuav dav. Qhov kev cog lus no tsim lub tshuab nqus tsev, uas rub huab cua mus rau hauv lub ntsws. Thaum exhalation, diaphragm so thiab rov qab mus rau nws cov duab zoo li qub, thiab huab cua raug yuam tawm ntawm lub ntsws
Yuav ua li cas tshwm sim rau lub notochord nyob rau hauv vertebrates?
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Nyob rau hauv vertebrates, lub notochord tsim nyob rau hauv lub vertebral kem. Hauv qee qhov chordates, nws tseem nyob mus ib txhis hauv lub neej raws li kev txhawb nqa lub cev tseem ceeb, thaum nyob hauv feem ntau cov vertebrates nws txhim kho mus rau hauv nucleus pulposus ntawm intervertebral disc
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Qhov kawg ntawm qhov ntev, sib tw raj uas khaws cov zis los ntawm cov nephrons (cov xov tooj ntawm tes hauv lub raum uas lim ntshav thiab tsim cov zis) thiab txav nws mus rau hauv lub raum lub plab thiab ureters. Kuj hu ua lub raum sau tubule
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Vim hais tias tus txiv neej ncaj qha tso cov phev mus rau hauv poj niam lub cev, tsawg gametes yuav tsum tau. Kev cog qoob loo sab nrauv xav kom txiv neej thiab poj niam tsiaj tsim cov lej loj ntawm gametes. Ua kom muaj ntau qhov gametes xav tau lub zog ntxiv, uas tuaj yeem ua rau cov tsiaj tsis zoo